Were disc brakes an option on the '66
Mercury Park Lane? Most cars did not come with them standard until 1969 or 70.
I once got to drive a '69 Chrysler Newport with drums on the front still, and that heavy beast stopped on a dime. A Toronado may have been heavier than the Merc. It was front drive, and that big transaxle was very heavy.
I see a blue German Ford Sierra (Merkur XR4ti) in the photo's.